Apple's built-in on-device model. In Cover's redaction test, Apple Intelligence caught 51% of the 149 private details in 18 bank, tax and medical PDFs, leaked 74 and over-redacted 129. Cover caught 100%, leaked 0 and over-redacted 14. Ranked by fewest leaks and over-redactions, Apple Intelligence places 8th of 12 engines and Cover places 1st.